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Absorption and fluorescence spectral properties of J-aggregates of core-tetrasubstituted perylene bisimide (PBI) dyes have been investigated in the temperature range from 300 to 5 K. A special feature of the present PBI J-aggregates is that, in contrast to classical J-aggregates like that of pseudoisocyanine (PIC), the chromophores are held together not only by van-der-Waals interactions but also
During recent decades, the flows of Muslims migrants to Europe have increased. The integration of these new migrants into the mainstream societies, conflict and multiculturism have been discussed in the book.
Injury to the brain (e.g., stroke) results in a disruption of neuronal connectivity and loss of fundamental sensori-motor functions. The subsequent recovery of certain functions involves structural rearrangements in areas adjacent to the infarct. This remodeling of the injured brain requires trafficking of macromolecular components including cholesterol and phospholipids, a transport carried out b
Cavity-assisted quantum memory storage has been proposed for creating efficient (close to unity) quantum memories using weakly absorbing materials. Using this approach, we experimentally demonstrate a significant (similar to 20-fold) enhancement in quantum memory efficiency compared to the no cavity case. A strong dispersion originating from absorption engineering inside the cavity was observed, w
A concept for time-sensitive optical detectors is described that shows how to confirm whether the detection device is operating in the linear response regime. By evaluating the recorded time decay of a thermographic phosphor, even weak saturation effects far from obvious situations can be identified and further related to either optical or electrical saturation. The concept has been validated by r
This is the first of two papers introducing a novel thermomechanical continuum constitutive model for cemented granular materials. Here, we establish the theoretical foundations of the model, and highlight its novelties. At the limit of no cement, the model is fully consistent with the original Breakage Mechanics model. An essential ingredient of the model is the use of measurable and micro-mechan
Photon time-of-flight spectroscopy (PTOFS) is a powerful tool for analysis of turbid materials. We have constructed a time-of-flight spectrometer based on a supercontinuum fiber laser, acousto-optical tunable filtering, and an InP/InGaAsP microchannel plate photomultiplier tube. The system is capable of performing PTOFS up to 1400 nm, and thus covers an important region for vibrational spectroscop
Electricity prices are known to spike during peak hours, only to revert to normal levels during off-peak hours. We introduce a generalization of the time varying independent spike model commonly used to model the electricity spot price from daily data to hourly data to cope with this feature. We let the probability of extreme prices depend on several variables, such as consumption, reserve margin
The aim of this study is to analyze the process of an agenda setting and see how a specific issue came to materialize on the security policy agenda. The empirical goal of the study is to see why Sweden chose to participate in the EU-led operation to Chad, and how that process came to be? The analysis is based upon Kingdon's multiple streams theory (2003) where he distinguishes the process into
Container Security Initiative was launched in 2002 by the US Customs and Border Patrol in order to secure the global flow of containers destined for USA. This thesis attempts to analyze Container Security Initiative in relation to a possible future scenario made by the weapons industry where the state's global traderoutes are being subject to militarization. A development which is partly based
This is a study of Spanish immigration policies, the changes they have gone through over the past years, and more importantly, why. Three theoretical approaches are central to this thesis, namely: economic calculations, to do the right thing, and politics of insecurity. Through these approaches, different events and considerations that affect policy-shaping are highlighted and analysed. This
The appointing of Swedish governmental officials has gone through a dramatic change the last nine years. The tradition of officials appointed due to their political experience has been traded against the appointing of experts. In this study I ask questions about this new way of appointing representatives effects how these officials interpret their role. An official that who has never been in the p
Abstract Title: Enabling Smart Research and Development through Knowledge Conversation Seminar date: 2005-06-08 Course: Master thesis in business administration, 10 Swedish credits (15 ECTS) Authors: Andreas Johnsson, Johan Rosendahl Advisors: Lars Bengtsson Key words: Knowledge management, Knowledge conversation, Research and development, Ba, Trelleborg Purpose: The purpose of the thesis is to cr
Gärdenfors' and Levi's theories of rational belief changes will be compared to Kuhn's theory of scientific progress. Gärdenfors' proposal to analyze scientific revolutions in terms of big changes in epistemic entrenchment will be criticized for not being able to represent the important constituting function of the paradigms. Parts of Levi's theory that are incompatible with Ku
In 1915 Maria Montessori and Anna Maccheroni built the first Children’s Chapel in Barcelona. Everything in the chapel was in the right size and height for a child. In this chapel the children learnt liturgy and prepeard themselves for the life in the Church through doing. In 2003 the first Swedish play church was built at Kastlösa Stiftsgård on the initiative of Karin Uddling. She had studied Mon
This research will attempt to reveal some major fault lines of the Basel III Capital Accords concerning Banking Regulation. It will consider some shortcomings of the previous rounds and scrutinise Basel III’s attempts to address the same issues. I have provided some idealised recommendations from various authors based upon previous problems and attempt to analyse where Basel III falls short agains
The main purpose of this study is to examine if the relationship between a target and an acquiring company´s abnormal return prior the transaction can affect the outcome in the future. Furthermore, our secondary purpose is to see if Swedish companies have a higher success rate compared to what earlier studies have shown about these phenomena. Finally our third purpose is to try to identify if ther
